diff options
| author | Marvin Borner | 2021-04-08 15:10:32 +0200 |
|---|---|---|
| committer | Marvin Borner | 2021-04-08 15:10:32 +0200 |
| commit | cff1032555afc9853a490714d7cfa22fdb4c499d (patch) | |
| tree | f6a5ef5f51a78400c0e659f2da5cb5fe170b1f37 /kernel/drivers | |
| parent | 5a03f41951c4c73a1238e0dc1afa4136ca4363a3 (diff) | |
Added UMIP
Diffstat (limited to 'kernel/drivers')
| -rw-r--r-- | kernel/drivers/cpu.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/kernel/drivers/cpu.c b/kernel/drivers/cpu.c index f751d33..5d53bef 100644 --- a/kernel/drivers/cpu.c +++ b/kernel/drivers/cpu.c @@ -168,6 +168,13 @@ CLEAR void cpu_enable_features(void) } else { print("No SMAP support :(\n"); } + + // Enable UMIP // TODO: QEMU support?! + if (cpu_extended_features.ecx & CPUID_EXT_FEAT_ECX_UMIP) { + cr4_set(cr4_get() | 0x800); + } else { + print("No UMIP support :(\n"); + } } void clac(void) |